I was speaking to my mum yesterday and she said to me "remember when you were a kid you use to fiddle, fidget & pick your navel all day long".
I have an 'outie' and I do remember that it was a long lasting habit. Even when I wore a shirt (which wasn't too often) I would have my hand stuck up it or in between the buttons feeling or plucking at my belly button.
I have a straight mate that has a worse habit though. He plays with his crotch (in public also) and I think he doesn't even know he's doing it. I've known him since he was a kid and now he's 27 and is still doing it.
Has anyone else have any habits?